if-else 语句用于在条件为真时执行一个代码块,而在条件为假时执行另一个代码块。 java if (condition) { // 条件为真时执行的代码块
虽然if 可以单独使用,但通常我们会结合 else 或 else if 来处理更多情况: java public class MultiConditionExample { public static void main(String[] args) { int score = 85; if (score >= 90) { System.out.println("Grade: A
When we need to execute a set of statements based on a condition then we need to usecontrol flow statements. For example, if a number is greater than zero then we want to print “Positive Number” but if it is less than zero then we want to print “Negative Number”. In this case ...
问无法到达的语句if condition JavaEN而且你必须有一个最终的返回语句，以防你的任何条件都不为真。添加...
Use the if statement to specify a block of Java code to be executed if a condition is true.SyntaxGet your own Java Server if (condition) { // block of code to be executed if the condition is true } Note that if is in lowercase letters. Uppercase letters (If or IF) will generate ...
if(condition){ //code if condition is true }else{ //code if condition is false } In this tutorial, we will see the programs of three types of if-statements:if-statement if-else statement if-else-if ladder Let us look at each of these programs separately.Program 1: If Program in ...
The condition can be any Java expression, as long as the result of the expression is a boolean result (either true or false). In the example above, the condition was whether the isValid variable was true or false. If the block of code to be executed is just a single statement, ...
Multiple else-if Conditions: The else if condition can be used multiple times before the final else statement. Execution Order: Java executes the if-else conditions from top to bottom, and once a condition is met, the remaining conditions are ignored.Print...
0 - This is a modal window. No compatible source was found for this media. ageage}elseif(age<21){printf("You need to be over 21\n");}else{printf("You are over 18 and older than 21 so you can continue \n");}} Output
In most programming languages, when multiple conditions in the "else if" sequence are true, only the code block associated with the first true condition is executed. The program doesn't check the subsequent conditions once a true condition is found. ...